If you weren't one of the record 12.8 million viewers who tuned in for Britney Spear's comeback performance on the X Factor on Saturday, then 1. Where were you?! 2. Actually you didn't miss much. Appearing for just four minutes in the results show at 10.15pm, not only did Britney mime her latest single Womanizer (watch it here) but she clearly hadn't even watched the contestants' earlier performances. When presenter Dermot asked her advice for the remaining contestants she simply said ‘Good luck and keep doing it'. Now, call us churlish but after weeks of anticipation over the return of one of our favourite guilty pleasures, somehow our Britney comeback bubble appears to have burst. So what do you think - are you suffering Britney comeback comedown too, or do you think she's back on top? Vote now.